Let the quality craftsmanship and distinctive styling of Overton's boat seats treat you to the best in comfort at an affordable price. Overton's Back-to-Back Lounge Seats are made of rugged, mildew-resistant, and ultraviolet-resistant marine vinyl and polyurethane foam. They also feature all weatherproof polypropylene plastic frames to eliminate warping and rotting. Experience them for yourself. Three-year warranty on upholstery. Six-year warranty on frame.